channing123
Member
inspector poped me on romex running through outdoor pvc he told me i had to change over to thhn for pool light HOW COME please explain 
romex in pvc outdoors?
- Thread starter channing123
- Start date
- Status
- Location
- Windsor, CO NEC: 2017
- Occupation
- Service Manager
Re: romex in pvc outdoors?
Need more info: by outdoor PVC do you mean Schedule 80 PVC or "Sunlight Resistant" Schedule 40? Or was it buried?
By pool light, do you mean an in the pool light? I've only dealt with those which have a mile of SO cord prewired to the light.
Need more info: by outdoor PVC do you mean Schedule 80 PVC or "Sunlight Resistant" Schedule 40? Or was it buried?
By pool light, do you mean an in the pool light? I've only dealt with those which have a mile of SO cord prewired to the light.
peter d
Senior Member
- Location
- New England
Re: romex in pvc outdoors?
channing, you're really scaring me with that question. If you are wiring pool lights, this really is an issue you should research before doing the installation. Thankfully, the inspector found your mistake.
NM cable cannot be used outdoors or in any wet location. It cannot be used for any outdoor branch circuits associated with pool wiring, among other restrictions.
Underground conduits are considered wet locations. Therefore, the conductor insulation for underground use in a raceway must have a "W" (wet) rating, like TH WN. THHN is usually dual rated as THHN/THWN.
channing, you're really scaring me with that question.
If you are wiring pool lights, this really is an issue you should research before doing the installation. Thankfully, the inspector found your mistake. NM cable cannot be used outdoors or in any wet location. It cannot be used for any outdoor branch circuits associated with pool wiring, among other restrictions.
Underground conduits are considered wet locations. Therefore, the conductor insulation for underground use in a raceway must have a "W" (wet) rating, like TH WN. THHN is usually dual rated as THHN/THWN.
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: romex in pvc outdoors?
Take the time to read article 680 or leave pools alone
Take the time to read article 680 or leave pools alone
speedypetey
Senior Member
- Location
- Hudson Valley, NY
Re: romex in pvc outdoors?
- Location
- Bremerton, Washington
Re: romex in pvc outdoors?
Its a very basic rule that is in Article 100. Article 100 is the foundation of the NEC. The inspector did you a huge favor. Not all electricans are qualifed for every type of electrical work. I'll close this post. PM me if you want with your qualifications.
Its a very basic rule that is in Article 100. Article 100 is the foundation of the NEC. The inspector did you a huge favor. Not all electricans are qualifed for every type of electrical work. I'll close this post. PM me if you want with your qualifications.
- Status